Table 16.
Description of Differences between Coder and Validator for ICD-10-CM Public Health Diagnoses
| Description of Coding Differences | Category and Number of Differences |
| Seventh character extension for initial encounter, required by ICD-10 | External causes of injury (14) |
| Heart disease (2) | |
| Other (5) | |
| For codes less than six characters that require a seventh character extension a placeholder x should be assigned for all characters less than six. | External causes of injury (7) |
| Other (2) | |
| Heart disease (1) | |
| Specificity of right and left side as well as region of body, type of infection, etc. | Other (18) |
| Heart disease (2) | |
| External causes of injury (11) | |
| Lower respiratory disease (1) | |
| Cerebrovascular (3) | |
| Diabetes (1) | |
| Malignant neoplasms (8) | |
| Nephritis (1) | |
| More specific causes | External causes of injury (7) |
| Deactivation of codes in tabular | External causes of injury (4) |
| Variation in code description/different codes | Other (73) |
| Heart disease (53) | |
| Lower respiratory disease (14) | |
| Cerebrovascular (6) | |
| Malignant neoplasms (5) | |
| External causes of injury (8) | |
| Diabetes (3) | |
| Missing additional code | Other (13) |
| Heart disease (4) | |
| Lower respiratory disease (4) | |
| Cerebrovascular (3) | |
| Diabetes (1) | |
| Malignant neoplasms (1) | |
| Nephritis (1) | |
| Additional code not necessary | Other (14) |
| Lower respiratory disease (3) | |
| Heart disease (3) | |
| External causes of injury (9) |